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authorLorenzo Stoakes <lstoakes@gmail.com>2016-10-13 03:20:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-19 00:13:37 +0300
commitc164154f66f0c9b02673f07aa4f044f1d9c70274 (patch)
treefdfdc521c7cadcbbd8b4bb6bd85e8b17c13fcb13 /mm/util.c
parentd4944b0ecec0af882483fe44b66729316e575208 (diff)
downloadlinux-c164154f66f0c9b02673f07aa4f044f1d9c70274.tar.xz
mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
This removes the 'write' and 'force' use from get_user_pages_unlocked() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c
index 662cddf914af..4c685bde5ebc 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -283,7 +283,8 @@ EXPORT_SYMBOL_GPL(__get_user_pages_fast);
int __weak get_user_pages_fast(unsigned long start,
int nr_pages, int write, struct page **pages)
{
- return get_user_pages_unlocked(start, nr_pages, write, 0, pages);
+ return get_user_pages_unlocked(start, nr_pages, pages,
+ write ? FOLL_WRITE : 0);
}
EXPORT_SYMBOL_GPL(get_user_pages_fast);